Clinical History 53 year old male presents with shoulder pain and upper extremity weakness, greatest with external rotation
Ultrasound of the Month – Case 24
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Ultrasound of the Month – Case 24
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Ultrasound of the Month – Case 24
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Ultrasound of the Month – Case 24
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Ultrasound of the Month – Case 24
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Ultrasound of the Month – Case 24
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Diagnosis: •
Spinoglenoid notch cyst causing denervation atrophy and fatty replacement of the infraspinatus muscle
Ultrasound of the Month – Case 24
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Discussion •
Spinoglenoid notch cysts result in denervation of the infraspinatus muscle due to compression of the suprascapular nerve within the spinoglenoid notch
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These cysts are virtually always associated with tears of the glenoid labrum
Ultrasound of the Month – Case 24
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Discussion •
Cysts within the suprascapular notch will result in denervation of both the supraspinatus and infraspinatus muscles
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Ultrasound may confirm the diagnosis of muscle atrophy and a spinoglenoid notch cyst and allow minimally invasive treatment, although these cysts are commonly recurrent without labral repair
Ultrasound of the Month – Case 24
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